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Long-term Debt - Interest and finance costs (Table) (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017
Long-term Debt, by Current and Noncurrent [Abstract] |  |
Interest on long term debt and capital leases | $ 28,691 | $ 23,008
Less: Interest capitalized | (468) | (1,260)
Reclassification adjustments of interest rate swap loss transferred to Interest and finance costs from Other Comprehensive Income (Note 13) | 73 | 473
Amortization of debt issuance costs | 1,367 | 1,288
Other bank and finance charges | 675 | 257
Interest and finance costs | $ 30,338 | $ 23,766

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- Definition Amount of amortization expense attributable to debt issuance costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(8)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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